Feedback Control of Microflows

  • Mike Armani
  • Zach Cummins
  • Jian Gong
  • Pramod Mathai
  • Roland Probst
  • Chad Ropp
  • Edo Waks
  • Shawn Walker
  • Benjamin Shapiro


This chapter gives an overview of methods we have developed and experimental results we have achieved for precision feedback control of flows and objects inside microfluidic systems. Essentially, we are doing flow control, but flow control on the microscale, and further even to nanoscale accuracy, to precisely and robustly manipulate liquid packets, particles (e.g., cells and quantum dots), and micro- and nanoobjects (e.g., nanowires). Target applications include methods to miniaturize the operations of a biological laboratory (lab-on-a-chip), e.g., presenting pathogens to on-chip sensing cells or extracting cells from messy biosamples such as saliva, urine, or blood; as well as nonbiological applications such as deterministically placing quantum dots on photonic crystals to make multidot quantum information systems.


Contact Angle Photonic Crystal Control Algorithm Microfluidic Device Linear Quadratic Regulator 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This research was supported by funding from the National Science Foundation (CAREER award), DARPA, and AFOSR. There is also current funding support from the National Institutes of Health to begin to transition these results from laboratory to medical research and clinical use. Success in this area relies on many collaborators that we would like to acknowledge and thank: Pamela Abshire, Andrew Berglund, Michael Emmert-Buck, Robin Garrell, “CJ” Kim, Alex Liddle, Andreas Lubbe, Ricardo Nochetto, Juan Santiago, Elisabeth Smela, and Ian White.


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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Mike Armani
    • 1
    • 2
  • Zach Cummins
    • 2
  • Jian Gong
    • 3
  • Pramod Mathai
    • 4
  • Roland Probst
    • 2
  • Chad Ropp
    • 5
  • Edo Waks
    • 6
  • Shawn Walker
    • 7
  • Benjamin Shapiro
    • 8
  1. 1.Pathogenetics Unit, Laboratory of PathologyNational Cancer InstituteBethesdaUSA
  2. 2.Fischell Department of BioengineeringUniversity of MarylandCollege ParkUSA
  3. 3.Micromanufacturing LaboratoryUniversity of CaliforniaLos AngelesUSA
  4. 4.Aerospace EngineeringUniversity of MarylandCollege ParkUSA
  5. 5.Electrical EngineeringUniversity of MarylandCollege ParkUSA
  6. 6.Electrical Engineering & Institute for Research in Electronics and Applied Physics (IREAP)University of MarylandCollege ParkUSA
  7. 7.Department of Mathematics & Center for Computation and Technology (CCT)Louisiana State UniversityBaton RougeUSA
  8. 8.Fischell Department of Bioengineering & Institute for Systems ResearchUniversity of MarylandCollege ParkUSA

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